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<?php $query = array( 'a' => 'b', 'c' => 'd' ); var_dump(array_intersect_key($query, array('a'))); var_dump(array_intersect_key($query, array('a' => null)));
based on dVV3Z
Output for 5.1.0 - 7.2.0
array(0) { } array(1) { ["a"]=> string(1) "b" }
Output for 5.0.0 - 5.0.5
Fatal error: Call to undefined function array_intersect_key() in /in/jmlTH on line 8
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_intersect_key() in /in/jmlTH on line 8
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: array_intersect_key() in /in/jmlTH on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_intersect_key() in /in/jmlTH on line 8